DE3482220D1 - RAM-BASED MULTI-STOP POINT LOGIC. - Google Patents

RAM-BASED MULTI-STOP POINT LOGIC.

Info

Publication number
DE3482220D1
DE3482220D1 DE8484306520T DE3482220T DE3482220D1 DE 3482220 D1 DE3482220 D1 DE 3482220D1 DE 8484306520 T DE8484306520 T DE 8484306520T DE 3482220 T DE3482220 T DE 3482220T DE 3482220 D1 DE3482220 D1 DE 3482220D1
Authority
DE
Germany
Prior art keywords
ram
stop point
based multi
breakpoint
point logic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE8484306520T
Other languages
German (de)
Inventor
Gilbert Eugene Lauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tandem Computers Inc
Original Assignee
Tandem Computers Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tandem Computers Inc filed Critical Tandem Computers Inc
Application granted granted Critical
Publication of DE3482220D1 publication Critical patent/DE3482220D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/317—Testing of digital circuits
    • G01R31/3177—Testing of logic operation, e.g. by logic analysers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Debugging And Monitoring (AREA)
  • Bus Control (AREA)
  • Electronic Switches (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Logic Circuits (AREA)

Abstract

An electronic circuit is disclosed for the generation of multiple breakpoint interrupts by using a plurality of RAMs (random access memory) wherein are stored bits such that, if all of the bit outputs of the RAM are active, then a breakpoint has been recognized. The logical combination of the RAM outputs determines the present of a breakpoint.
DE8484306520T 1983-09-29 1984-09-25 RAM-BASED MULTI-STOP POINT LOGIC. Expired - Fee Related DE3482220D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/537,039 US4675646A (en) 1983-09-29 1983-09-29 RAM based multiple breakpoint logic

Publications (1)

Publication Number Publication Date
DE3482220D1 true DE3482220D1 (en) 1990-06-13

Family

ID=24140922

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484306520T Expired - Fee Related DE3482220D1 (en) 1983-09-29 1984-09-25 RAM-BASED MULTI-STOP POINT LOGIC.

Country Status (8)

Country Link
US (1) US4675646A (en)
EP (1) EP0136168B1 (en)
JP (1) JPH06100976B2 (en)
AT (1) ATE52629T1 (en)
AU (1) AU566775B2 (en)
CA (1) CA1216363A (en)
DE (1) DE3482220D1 (en)
NO (1) NO843895L (en)

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CA1271231A (en) * 1985-10-29 1990-07-03 Her Majesty The Queen, In Right Of Canada, As Represented By The Ministe R Of National Defence High speed digital direct access filter for tracking or excision of parametric signal data
US4860195A (en) * 1986-01-24 1989-08-22 Intel Corporation Microprocessor breakpoint apparatus
US5249278A (en) * 1986-01-24 1993-09-28 Intel Corporation Microprocessor breakpoint apparatus
US5165027A (en) * 1986-01-24 1992-11-17 Intel Corporation Microprocessor breakpoint apparatus
US5053944A (en) * 1986-01-24 1991-10-01 Intel Corporation Microprocessor breakpoint apparatus
US4752763A (en) * 1986-07-11 1988-06-21 Mai Basic Four, Inc. Binary comparison circuit with selectable binary digit override
US4961067A (en) * 1986-07-28 1990-10-02 Motorola, Inc. Pattern driven interrupt in a digital data processor
US4819234A (en) * 1987-05-01 1989-04-04 Prime Computer, Inc. Operating system debugger
EP0383981A1 (en) * 1989-02-23 1990-08-29 Siemens Aktiengesellschaft Data selector
US5168499A (en) * 1990-05-02 1992-12-01 California Institute Of Technology Fault detection and bypass in a sequence information signal processor
EP0483399A1 (en) * 1990-10-30 1992-05-06 Siemens Aktiengesellschaft Device for comparing two binary coded data
US5239642A (en) * 1991-04-02 1993-08-24 Motorola, Inc. Data processor with shared control and drive circuitry for both breakpoint and content addressable storage devices
JP2505950B2 (en) * 1991-05-13 1996-06-12 インターナショナル・ビジネス・マシーンズ・コーポレイション Hardware support break point system
DE69228980T2 (en) * 1991-12-06 1999-12-02 Nat Semiconductor Corp Integrated data processing system with CPU core and independent parallel, digital signal processor module
JP2734468B2 (en) * 1992-01-24 1998-03-30 三菱電機株式会社 Processor
US5440710A (en) * 1994-03-08 1995-08-08 Exponential Technology, Inc. Emulation of segment bounds checking using paging with sub-page validity
US5652872A (en) * 1994-03-08 1997-07-29 Exponential Technology, Inc. Translator having segment bounds encoding for storage in a TLB
US5664159A (en) * 1994-03-08 1997-09-02 Exponential Technology, Inc. Method for emulating multiple debug breakpoints by page partitioning using a single breakpoint register
EP0762280B1 (en) * 1995-08-30 2001-11-14 Motorola, Inc. Data processor with built-in emulation circuit
US5964893A (en) * 1995-08-30 1999-10-12 Motorola, Inc. Data processing system for performing a trace function and method therefor
US5737516A (en) * 1995-08-30 1998-04-07 Motorola, Inc. Data processing system for performing a debug function and method therefor
US5704034A (en) * 1995-08-30 1997-12-30 Motorola, Inc. Method and circuit for initializing a data processing system
US6192427B1 (en) * 1997-05-02 2001-02-20 Texas Instruments Incorporated Input/output buffer managed by sorted breakpoint hardware/software
US5931956A (en) * 1997-06-10 1999-08-03 Atmel Corporation Digital circuit using memory for monitoring signals for occurrences of predefined breakpoint conditions
US6182208B1 (en) 1998-08-14 2001-01-30 Lucent Technologies, Inc. System for debugging (N) break points by dividing a computer program to (n+1) regions each contains no break point and using two registers to define the start and end addresses of each region
US6598178B1 (en) * 1999-06-01 2003-07-22 Agere Systems Inc. Peripheral breakpoint signaler
US6618839B1 (en) * 1999-11-30 2003-09-09 Synplicity, Inc. Method and system for providing an electronic system design with enhanced debugging capabilities
US6823497B2 (en) 1999-11-30 2004-11-23 Synplicity, Inc. Method and user interface for debugging an electronic system
US6931572B1 (en) 1999-11-30 2005-08-16 Synplicity, Inc. Design instrumentation circuitry
US7072818B1 (en) * 1999-11-30 2006-07-04 Synplicity, Inc. Method and system for debugging an electronic system
US7065481B2 (en) 1999-11-30 2006-06-20 Synplicity, Inc. Method and system for debugging an electronic system using instrumentation circuitry and a logic analyzer
US7356786B2 (en) * 1999-11-30 2008-04-08 Synplicity, Inc. Method and user interface for debugging an electronic system
US7222315B2 (en) * 2000-11-28 2007-05-22 Synplicity, Inc. Hardware-based HDL code coverage and design analysis
US6735652B2 (en) * 2001-05-03 2004-05-11 Texas Instruments Incorporated Detecting the occurrence of desired values on a bus
US20020188813A1 (en) * 2001-05-04 2002-12-12 Hugo Cheung On-chip hardware breakpoint generator with comprehensive memory operation detection
GB2384582A (en) * 2002-01-28 2003-07-30 Ericsson Telefon Ab L M Software correction
US20030225838A1 (en) * 2002-05-31 2003-12-04 International Business Machines Corporation Method and apparatus for implementing extended breakpoint notification

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937938A (en) * 1974-06-19 1976-02-10 Action Communication Systems, Inc. Method and apparatus for assisting in debugging of a digital computer program
US4080650A (en) * 1976-07-28 1978-03-21 Bell Telephone Laboratories, Incorporated Facilitating return from an on-line debugging program to a target program breakpoint
US4100532A (en) * 1976-11-19 1978-07-11 Hewlett-Packard Company Digital pattern triggering circuit
US4176394A (en) * 1977-06-13 1979-11-27 Sperry Rand Corporation Apparatus for maintaining a history of the most recently executed instructions in a digital computer
US4293950A (en) * 1978-04-03 1981-10-06 Nippon Telegraph And Telephone Public Corporation Test pattern generating apparatus
JPS55117336A (en) * 1979-03-02 1980-09-09 Kagaku Gijutsucho Hoshasen Igaku Sogo Kenkyusho Logic circuit
US4312071A (en) * 1979-12-03 1982-01-19 Safe Flight Instrument Corporation Digital code error detection and alerting system
US4339819A (en) * 1980-06-17 1982-07-13 Zehntel, Inc. Programmable sequence generator for in-circuit digital testing
US4475237A (en) * 1981-11-27 1984-10-02 Tektronix, Inc. Programmable range recognizer for a logic analyzer
US4635193A (en) * 1984-06-27 1987-01-06 Motorola, Inc. Data processor having selective breakpoint capability with minimal overhead

Also Published As

Publication number Publication date
AU566775B2 (en) 1987-10-29
ATE52629T1 (en) 1990-05-15
EP0136168A3 (en) 1986-11-20
AU3359284A (en) 1985-04-04
CA1216363A (en) 1987-01-06
US4675646A (en) 1987-06-23
NO843895L (en) 1985-04-01
JPH06100976B2 (en) 1994-12-12
EP0136168A2 (en) 1985-04-03
JPS60168244A (en) 1985-08-31
EP0136168B1 (en) 1990-05-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee